Home / 132,809.92-183,271.12-72,380.36

Finding the Fourth Proportional to 132,809.92, 183,271.12 and 72,380.36

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Solution

The fourth proportional to 132,809.92, 183,271.12 and 72,380.36 is: 99,881.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,809.92 : 183,271.12 = 72,380.36 : x
  2. Step 2: Convert to fraction form
    132,809.92/183,271.12 = 72,380.36/x
  3. Step 3: Cross multiply
    132,809.92x = 183,271.12 × 72,380.36
  4. Step 4: Simplify right side
    132,809.92x = 13,265,229,643.20
  5. Step 5: Solve for x
    x = 13,265,229,643.20/132,809.92
  6. Step 6: Final answer
    x = 99,881.32

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.